摘要:
The invention relates to a method of selection of an ophthalmic lens suitable for correcting at least an optical impairment of an eye of a wearer who observes a screen. According to the invention the method comprises the steps of: - determining at least a characteristic of posture of the wearer observing said screen, - determining a dioptric power value associated to said vision zone allowing the wearer when wearing the ophthalmic lens to have an easier reading of said screen, - determining at least one characteristic of filtering means to adjust the light exposure of the wearer to said screen, and - determining the vision zone based on dioptric power value, characteristic of posture of the wearer and characteristic of filtering means so that the vision comfort of the wearer is optimized when wearing the ophthalmic lens while observing a screen
摘要:
A method for manufacturing an ophthalmic progressive addition lens (100) with customized design features adapted to a wearer, the method comprising the following steps: /a/ a providing step of a lens substrate; /b/ a modifying step in which a first target virtual lens is provided and modified so as to obtain a second target virtual lens, the second target virtual lens having a design feature parameter substantially equal to a customized design feature parameter; /c/ an optimizing step in which an optimized trial virtual lens is obtained by optimizing a trial virtual lens in such a manner that the optimized trial virtual lens has optical characteristics which are substantially equal to the characteristics of the second target virtual lens; and /d/ a manufacturing step of the ophthalmic progressive addition lens from the lens substrate according to the trial virtual lens. Method for the determination of a customized ophthalmic progressive addition lens with customized design features. Related computer program product.
摘要翻译:一种用于制造具有适合于穿着者的定制设计特征的眼用渐进附加镜片(100)的方法,所述方法包括以下步骤:/ a / a提供镜片基底的步骤; / b / a修改步骤,其中提供和修改第一目标虚拟透镜以便获得第二目标虚拟透镜,所述第二目标虚拟透镜具有基本上等于定制设计特征参数的设计特征参数; / c /优化步骤,其中通过以优化的试用虚拟透镜具有基本上等于第二目标虚拟透镜的特性的光学特性的方式优化试用虚拟透镜来获得优化的试用虚拟透镜; 和/ d / a根据试验虚拟透镜的透镜基板的制造步骤。 用于确定具有定制设计特征的定制眼用渐进附加镜片的方法。 相关电脑程式产品
摘要:
The invention relates to a device for determining the rotation center of the eye of a person with respect to a point of reference assigned thereto or to the part of the spectacles thereof. The inventive device makes it possible to determine the visual axis of said person in at least two non-parallel directions by means of a visualised target and to define an optimal point called a crossing point of said axes in the form of the eye's rotation center, wherein at least to positions with respect to said target (2) and the person's head are measured. According to the invention, said target consists of a light source and is placed at the end of a tubular support (3) whose other end is placeable in front of the person's eye and which carries a first position sensor (4), wherein a second position sensor (7) is placeable on the person's head.